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Date: Mon, 22 Sep 2014 13:50:08 -0500 From: Chris J Arges <chris.j.arges@...onical.com> To: Christoph Hellwig <hch@...radead.org> CC: bruce.lucas@...godb.com, Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>, Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>, Sreekanth Reddy <sreekanth.reddy@...gotech.com>, Abhijit Mahajan <abhijit.mahajan@...gotech.com>, MPT-FusionLinux.pdl@...gotech.com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] mptfusion: enable no_write_same in scsi_host_template On 09/22/2014 01:19 PM, Christoph Hellwig wrote: > On Mon, Sep 22, 2014 at 01:17:01PM -0500, Chris J Arges wrote: >>> >> I've only been able to reproduce this on VMWare. There is a pretty >> straightforward reproducer in the BugLink if there is any interest in >> verifying on hardware. >> >> How would you recommending blacklisting only VMWare guests in this case? > > Can you check what PCI subdevice and subvendor IDs the device you can > reproduce it with have? If the subvendor is Vmware that would be easy, > if not the Avago people might be able to help with a device specific > VMware identification. If that fails we have kernel helpers to > identify the hypervisor, but I'd rather avoid that as it would also > trigger for PCI pass through devices. > Christoph, Thanks for the input, and now I realize how broad the earlier patch was. I'll see if I can quirk on the vendor ID to enable no_write_same, in the meantime I'll see if there are any ways to fix the underlying issue without adding such a quirk. Thanks, --chris j arges -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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